Tack pulling and resetting machine.



. J. B. HADAWAY.

TACK PULLING AND RBSETTING MACHINE.

APPLICATION FILED DEC. 28, 1911.

1,109,220, Y Patented Sept.1,1914.

j s sKEETssHEBT 1.

W686 my fl -14,5 {L i T111; FORRIS PETERS CO.. PHOTO-LITIIQ, WASHINGTON. D. c.

J. B. HADAWAY.

TACK PULLING AND RESETTING MACHINE.

APPLICATION FILED DEQ..28, 1911.

Patented Sept. 1, 1914.

3 SHEETSSHEET 2.

THE JQRRIS PETERS CON PHOrO-LITHQ, WASHINGTON, D. C

J. B. HADAWAY. TACK PULLING AND RESETTING MACHINE.

APPLICATION FILED DECLZS, 1911.

Patented Sept. 1, 1914.

3SHEETSSHEET 3.

'THE AORRls PETERS 30.. PHOI'O Llrno. WASIIINUI'ON, I) 1 I UNITED :ror-nv B. HADAWAY, or SWAMPSCOT'I, MAssAcrIusET'rs, Assre'non r UNITE Slag MACHINERY GOMPANY,' or PATERSON, NEW JEnsEY, A CORPORATION or NEW JERSEY.

TACK PULLING AND an'snr'rme MAoH'Inng To all whom it may-concern Beit known that I, JOHN B. H DAwAY,

Q a citizen of the United States, residing at Swampscott, in the county of :Essex .and

State of Massachusetts, have invented certain new and useful Improvements in Tack Pulling and Resetting Machines; and I do, hereby declare the following to be a full, clear,'and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relatesto machines for preparing lasted boots and shoes for the sewing operation and more'particularly to) that type of machine which is. employed for removing lastingtacks from aboot, or shoe and inserting holdingtacks in place thereof. Machines, of this general type operate upon the shoe .preparatory to the sewing opera tion to remove lasting tacks and insert a fewer number of holding tacks which serve to retain the upper in its lasted position during the sewing operation without interference with the eedle of the sewing machine.

As the tack p illing mechanism of this machine is actuated continuously it is conducive to the efficient operation of the machine that this mechanism be of a simple and compact construction having a small numberof moving parts which are not subject to constant breakage and" which are free from complicated movements tending to increase the difficulty of properly. adjustingthe machine. p The objectfiof the present invention is to provide an improved machine of this characterhaving a simple and compact arrangement of parts which operate smoothly and quietly and which removes the lasting tacks with great rapidity and insertstherequisite number ofjholding tacks with precision and certainty. With this object inview, onefeature of the invention consistsinthe combination of a rotarytack pulling .tool'operatingin the line of feed of the shoe and continuously.-

sert the; holding tacks at irregular intervals along each side of theshoe.

A further feature of the invention con SiSt S .fllI1: the combination of; a; rotary tack.

Specification of Letters Patent. I 1 P t nte t; 1, 4 Application filed December 28, 1911. Serial No.i6 6 8;341.. i i H pulling tool having. a tack engaging blade i I wlth a cooperating stationary jaw which i has provision for a yieldingimovement away fromthe tack pulling tool.

Still further features of the invention con-r.

sist in certain novel features of construction,

combinations and arrangements of parts hereinafter; describedand claimed, the advantages of whichrwill be obvious to those 1 skilled in the art. from the following def. scription.

In the accompanying (drawings illustrat ing the preferred form of the invention ;-v Figure 1 represents a front elevation of a machine embodying the several featuresof the invention in their preferred forms Fig.

2 is a left hand side elevation, of the machine shown in Fig. 1; Fig. 3ris a trans- Fig. 1 and looking in the direction of, the arrowsggFig. 4 is a detail illustrating the verse section taken upon the line 33 of relative positions, of the tack pulling. tool r and tack driving plunger and the means for 9 positioning the tackto be removed in the proper operative relation to the tool; Fig. 5

downholds andtack pulling tool and show ii ingthe manner in whichithetack is posi tioned relative to the tool; and 'Fig. 6 isa detail partially. diagrammatic illustrating, .1;

drivingmechanism and a tack pulling mech in the illustrated em-i bodiment of the invention consists of a tack .790 anism located adjacent to oneanother'in the direction or line of feed of the shoe in order that each side of the lasted shoe may be fed; continuously along in onedirection to re 1 move the lasting tacks and insert the requi site number of holding tacks. driving nozzle is located in the line of feed Th c ofthe shoe in close proximity to the, tack p pulling mechanism in order that the lasting tack may. be removed and a holding tack i-n-g sertedin place thereof at substantially the same point withoutvarying the position of theshoe relative tothe machine.

As is usual in this type of machine the tack driving mechanismis under the control;

7 10,5) 5 of the operator and is constructed and. ar

rangedto drive only'a single tack upon,

in a raised or inoperativeposition by a suiteach. depression offthe operating treadlew The tack driving plungeris normally heldi Q u is a detail illustrating a cross section of the able trip mechanism but is released upon d. press ng the treadle to allow an actuating sp'ringfto impart a. downward blow to the blow'is imparted by an actuating spring 5." The plunger is'normally held in a raised position by an elevating cam 6 which is mounted upon the outer end of a shaft 7 and is rotated-by the engaging'of two clutch faces formed respectively upon the pulley 2an'd a clutch member 8. The pulley 2 is moved into operative engagement with the clutch member 8 by an arm 9'pivotedat its lower .end to the frame'of'the machine and connected at its upper end to a tension spring 10. The -clutch' fa'ces'arenormally held out of engagement by a latch lever 11 which is supported upon an arm 12 actuated by a path'cam 13. The cam issecured to the shaft 7 and is designed to move the lever 11 and disengage the clutchmembers upon'the completion of a single revolution of the shaft. When the clutch members are dis-' engaged,- the rotation of the shaft 7 is stopped and the elevating cam holds the plunger raised. The lever 11 is maintained 1n engagement with a block 14 by a spring 15 and is depressed to allow the actuation of the plunger by a dog 16 connected tothe operating treadle. The cam 13 is arranged to" remove the lever 11 from engagement with-the-dogl6 before the shaft 7 has completed its revolution in order that the lever inay be positioned properly to engage with the block 14 irrespective of the position of the treadle. In order to stop the rotation of the-shaft 7 immediately, a suitable form offriction brake indicated at 18 is provided. The trip mechanism has been only briefly described herein as it forms no part of the present invention and is substantially the same as the trip mechanism shown and described-in the patent to WVoodward, 389,27 5, September 11, 1888.

Itis'desirable in machines of thistype to provide a tack pulling mechanism which may be operated continuously at a high speed without'a constant breakage of parts or otherwise detracting from the efliciency of the machine. In order to accomplish this result it is necessary to provide a tack pulling mechanism which has a relativelysmall number of parts, free from complicated movements, and which operates smoothly andquietly both when engaged in removing tacks and when running idle; To this end the tackpulling mechanism of the present invention consists of' a tack pulling tool operatingin theline' of feed of the shoe and chine; It is desirable that the tacks which have been'removed from the shoe be'ejected away from the operator toward the rear of the machine and that the various elements of the tack pulling mechanism be arranged ina manner to allow the free manipulation of' the shoe by the operator when feeding the same. To this end the shaft to which the tack pulling tool is secured is arranged obliquely to the line of feed of the shoe'and the tack pulling movement takes place in a:

rearward direction; The tack is supported against the lateral thrustof the tool and is retained in engagementwith the tool by a stationary jaw which has provision for a yielding downward movement to prevent breakage of the operating parts of the machine when a tack of unusual size is encountered. The upper of the shoe upon opposite sidesof'the lasting tacks to be removed is pressed down by a pair of downholds, theadjacent edges of which form a throat for guiding the tack into a position of presentation relative to the tack pulling tool. In the simplestand most efficient form of the invention which has yet been devised, one of the downholds constitutes a stationary jaw or thrust plate for supporting the tack against the thrust of the tack pulling tool and insuring the positive engagement and removal of the tack by the tool.

The tack pulling tool is indicated at 20 and is secured upon the outer end of a shaft 22 journaled obliquely in bearings 23 and 24,- as shown clearly in Fig. 3. The bearings for the shaft 22 are formed upon abracket 25, adjustably secured to the machine frame by bolt and'slot connections indicated at 26 and 27 respectively and by means of this adjustment the tack pulling tool may be readily positioned inthe proper operative position relative to the tack driving mechanism;

The shaft 22 is continuously rotated during the operation of the machine by a driving belt 28 which operatively connects a drive pulley 29 with a driven pulley 30'fastened' to the shaft 22. The belt 28 is guided in its course by an'idler pulley 31 journaled upon an arm 32 and an idlerpulley 33 ournaled upon an arm 35. The supporting arms '32 and 35 of the-idler pulleys are adjustably mounted upon the bracket 25 in order to vary the position of the pulleys lIlCltO increase or decrease the tension uponthe belt. In order to manipulate the tack pulling tool by hand, if so desired, a handwheel 37 is mounted onthe rear end of the shaft 22 as shown clearly in Figs. 1 and 3.

The tack pullingtool shown in the illustrated embodiment" of the invention is provided with* a single tack pulling blade 40 which has a transverse tack engaging edge arranged to engage with the shank of a lasting tack beneath the head. The upper of the shoe is engaged upon opposite sides of the lasting tack to be removed by a pair of downholds indicated respectively at 45 and 46, the adjacent edges of which forma throat for guiding the tacks into position to be removed by the tack pulling tool. The downhold 46 is adjustably secured to the machine frame by a bolt 47 in order that the downhold may be positioned in the proper relation to the tack pulling tool and cooperating downhold. The tacks are positioned laterally of the tool by a transverse abutment which consists of an upstanding rib 48 formed integral with the downhold and projecting into the path of the tack to be removed, as shown clearly in Fig. 4. The downhold 45 is formed upon the outer end of an I-shaped bracket 41 which is adjustably secured to a slide 42 by means of a bolt and slot connection indicated at 43. The slide 42 i pivoted upon a supporting member 50 at 51 and a spring 52 interposed between the lower end of the slide and the sup porting member serves to normally retain the downhold in operative relation to the tool. The normal position of the downhold is determined by a stop member consisting of a screw 55 threaded in the bracket 41 and engaging with the under side of the machine frame. The member 50 is supported upon the bracket 25 and has provision for a lateral adjustment relative thereto by a. bolt and slot connection indicated at 56. It will thus be obvious that with the above described construction the downhold has provision for an universal adjustment relative to the tool and that in operation the downhold may be depressed when a tack of an unusual size is engaged between the downhold and tack pulling tool. As shown clearly in Figs. 5 and 6, the downhold 45 supports the tack against the thrust of the tool when it engages therewith and holds the tack in engagement with the tool throughout the entire range of the tack pulling movement, thus providing a stationary jaw which cooperates with the tack pulling tool.

While it is preferred to employ the specific construction and arrangements of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims and may be changed or modified without departing from the broader features of the invention.

Having thus described the invention, What is claimed is 1. A tack pulling and resetting machine having, in combination, a tack driving plunger, means under the control of the operator for imparting a working'stroke to the plunger, a rotary tack pulling tool having its axis arranged obliquely to the line of feed of the shoe, and means for continuously actuating the tack pulling tool, substantially as described.

2. A tack pulling and resetting machine having, in combination, a rotary tack pulling tool arranged to have a tack pulling movement in a rearward direction, means for actuating the tool, a tack driving plunger located adjacent to the tack pulling tool and operating in the line of feed of the shoe, and means under the control of the operator for imparting a working stroke to the plunger, substantially as described.

3. A tack pulling and resetting machine comprising a rotary tack pulling tool arranged to operate in the line of feed of the shoe, mechanism for actuating the tool transversely to the line of tacks, and a stationary jaw arranged to support the tack against the thrust of the tack pulling tool and having provision for a yielding movement away from the tool, substantially as described.

JOHN B. HADAWAY.

Witnesses:

LAURA M. Goonnrocn, CHESTER E. Rocnns.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C.

Correction in Letters Patent No. 1,109,220.

It is hereby certified that in Letters Patent No. 1,109,220, granted September 1, 1914, upon the application of John B. Hadaway, of Swampscott, Massachusetts, for an improvement in Tack Pulling and Resetting Machines, an error appears in the printed specification requiring correction as follows: Page 3, line 20, for the compound word l-shaped read L-shaped; and that the said Letters Patent should he read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 6th day of October, A. D., 1914- R. F. WHITEHEAD,

Acting Commissioner of Patents.

[SEAL] 

